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Top Forums Shell Programming and Scripting Dynamic command line generation with awk Post 302405182 by gbagagli on Thursday 18th of March 2010 05:50:13 AM
Old 03-18-2010
Dynamic command line generation with awk

Hi,
I'm not an expert in awk but i need a simple script to do this:

I'd like to AutoCrop PDF files.
I found 2 simple script that combined together could help me to automatize Smilie

The first utiliti is "pdfinfo" that it gives the MediaBox and TrimBox values from the pdf.
The pdfinfo output is:
Code:
[bags@TheBagsMan Scrivania]$ pdfinfo -box '/home/bags/Scrivania/0280.u3_capitolo15.pdf' Creator: Adobe InDesign CS3 (5.0.4) Producer: Adobe PDF Library 8.0 CreationDate: Sun Nov 8 18:52:01 2009 ModDate: Tue Mar 16 14:48:00 2010 Tagged: no Pages: 18 Encrypted: no Page size: 680.268×898.535 pts MediaBox: 0.00 0.00 680.27 898.53 CropBox: 0.00 0.00 680.27 898.53 BleedBox: 28.32 28.32 651.94 870.21 TrimBox: 42.50 42.50 637.77 856.04 ArtBox: 42.50 42.50 637.77 856.04 File size: 29864683 bytes Optimized: no PDF version: 1.6

Once obtained the values I've to give them as imput for another utility "pdfcrop"
Code:
[bags@TheBagsMan Scrivania]$ pdfcrop --margins '-42.50 -42.50 -42.50 -42.49' '/home/bags/Scrivania/0280.u3_capitolo15.pdf' '/home/bags/Scrivania/0280.u3_capitolo15.pdf'

The problem is that the "--margins" option values should be calculated as
Code:
MediaBox - TrimBox single values (the first -42.5 --> 0.00-42.50; second -42.50 --> 0.00-42.50; third -42.50 --> 680.27-637.77; last -42.49 --> 898.53-856.04)

Id like to have an AWK that recreate the pdfcrop command...
Someone can help me?

thx,
Giovanni

Last edited by radoulov; 03-18-2010 at 08:52 AM.. Reason: zaxxon: use code tags please, ty; radoulov - title fixed
 

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IGAWK(1)							 Utility Commands							  IGAWK(1)

NAME
igawk - gawk with include files SYNOPSIS
igawk [ all gawk options ] -f program-file [ -- ] file ... igawk [ all gawk options ] [ -- ] program-text file ... DESCRIPTION
Igawk is a simple shell script that adds the ability to have ``include files'' to gawk(1). AWK programs for igawk are the same as for gawk, except that, in addition, you may have lines like @include getopt.awk in your program to include the file getopt.awk from either the current directory or one of the other directories in the search path. OPTIONS
See gawk(1) for a full description of the AWK language and the options that gawk supports. EXAMPLES
cat << EOF > test.awk @include getopt.awk BEGIN { while (getopt(ARGC, ARGV, "am:q") != -1) ... } EOF igawk -f test.awk SEE ALSO
gawk(1) Effective AWK Programming, Edition 1.0, published by the Free Software Foundation, 1995. AUTHOR
Arnold Robbins (arnold@skeeve.com). ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +--------------------+-----------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +--------------------+-----------------+ |Availability | SUNWgawk | +--------------------+-----------------+ |Interface Stability | Volatile | +--------------------+-----------------+ NOTES
Source for gawk is available on http://opensolaris.org. Free Software Foundation Nov 3 1999 IGAWK(1)
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